XR Series Rotary Drilling Rig stands for our company's achievement in many years' development and researches on piling machine, adopting the advanced technology, both at home and abroad. With our company's powerful machinery manufacturing capacity, it is specially designed to drill the pile hole with the big diameter and into hard—layers, fitting for layer conditions in most areas.

XR series is an ideal equipment widely applied in piling constructions, featuring reasonable design, compact structure, convenient operation, high reliability, powerful performance and wide application.

* It adopts the dedicated hydraulic retractable crawler chassis and large diameter slewing bearing to provide extraordinary stability and transport convenience.

* It adopts the Cummins electric control turbo-supercharged engine to provide strong power and conformity with Euro III emission standard.

* With the hydraulic pressure system adopted threshold power control and negative flow control, the system acquired high efficiency and higher energy conservation.

* Using single rope winding, effectively solve the steel wire rope wear problem, improve the life of wire rope; And drill deep detection device is settled in main winding, single rope to make deep inspection more accurate.

* The whole machine design meets the requirements of the CE directive, safety guarantee, construction safer.

Parameter		Unit	XR150DIII
Max. drilling diameter		mm	1500
Max. drilling depth		m	56
Allowable luffing scope (from center of drill rod to slewing center)		mm	3250～3650
Drilling rig dimension in working condition (L × W × H)		mm	7550×4200×19040
Drilling rig dimension in transport condition (L × W × H)		mm	13150×2960×3140
Weight of overall unit (standard configuration, excluding drilling tool)		t	49
Engine	Model		CUMMINS QSB7
Engine	Rated power/speed	kW	150/（2050r/min）
Max. working pressure of hydraulic system		MPa	35
Rotary drive	Max. torque	kN •m	150
Rotary drive	Rotational speed	r/min	7～33
Crowd cylinder	Max. Pushing force	kN	120
	Max. Pulling force	kN	160
	Max.stroke	mm	3500
Main winch	Max.pulling force	kN	160
	Max. single-rope speed	m/min	72
	Diameter of the steel wire rope	mm	26
Auxiliary winch	Max.pulling force	kN	50
	Max. single-rope speed	m/min	60
	Diameter of the steel wire rope	mm	16
Rotary table slewing angle		°	360
Traveling	Max. traveling speed of the overall unit	km/h	2.1
Traveling	Max. climbable gradient of the overall unit	%	40
Crawler	Width of crawler plate	mm	700
	External width of crawler (min.-max.)	mm	2960～4200
	Center distance between two longitudinal wheels of crawler	mm	4310
	Average ground pressure	kPa	83